Home / 1,115,981.12-1,540,174.35-632,494.36

Finding the Fourth Proportional to 1,115,981.12, 1,540,174.35 and 632,494.36

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Solution

The fourth proportional to 1,115,981.12, 1,540,174.35 and 632,494.36 is: 872,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,981.12 : 1,540,174.35 = 632,494.36 : x
  2. Step 2: Convert to fraction form
    1,115,981.12/1,540,174.35 = 632,494.36/x
  3. Step 3: Cross multiply
    1,115,981.12x = 1,540,174.35 × 632,494.36
  4. Step 4: Simplify right side
    1,115,981.12x = 974,151,591,639.89
  5. Step 5: Solve for x
    x = 974,151,591,639.89/1,115,981.12
  6. Step 6: Final answer
    x = 872,910.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.